Abstract's details

Feed-back and contribution after several years of Haiyang-2B data availability

Alexandre Philip (CLS, France)


Guillaume Taburet (CLS, France); Yannice Faugère (CLS, France); Nadège Quéruel (CNES, France); François Bignalet-Cazalet (CNES, France); Gérald Dibarboure (CNES, France)

Event: 2022 Ocean Surface Topography Science Team Meeting

Session: Regional and Global CAL/VAL for Assembling a Climate Data Record

Presentation type: Type Oral

Contribution: PDF file


The Haiyang-2B (H2B) mission has been launched in October 2018 by the Chinese Agency NSOAS (National Satellite Ocean Application Service). H2B is the second unit of the Haiyang-2 altimetry Program which also features HY2C (launched in September 2020) and HY2D (launched in May 2021) as well as the upcoming units E to H in the future. These satellites are dedicated to monitor the dynamic ocean environment and they bring a significant contribution to the sampling capability of the CEOS Ocean Surface Topography Virtual Constellation.

For almost 2 years, H2B has used to produce several operational products such as Sea Level Anomaly (SLA) Level-2P/3/4 [1][2][3][4] funded by CNES (Centre National d’Etudes Spatiales) and Wind and Waves (W&W) products L2P/L3/L4 [4] supported by CNES, and CMEMS (Copernicus Marine Environment Monitoring Service) funding. Preliminary results shown good data quality and benefits to used H2B on SLA and W&W products [4].

After several years of data availability, we will present the feedback on H2B data quality. We will explain the choices made related to SLA standards and post-processing for L2P products. Furthermore, the contribution and performance of H2B in L3 SLA products will be discussed. To conclude, we will evoke recommendations for L2 data improvement for future missions.

[1] Lievin et al. OSTST conference 2020

[2] Kocha et al., 2021 : « Reprocessing of a sea level L2P-multi-mission dataset covering 28 years”, Aviso news letter 18

[3] Kocha et al. EUMETSAT conference 2021

[4] Philip et al. OSTST conference 2020

Poster show times:

Room Start Date End Date
Mezzanine Tue, Nov 01 2022,17:15 Tue, Nov 01 2022,18:15
Mezzanine Thu, Nov 03 2022,14:00 Thu, Nov 03 2022,15:45
Alexandre Philip